The San Francisco-born coach said he was in awe of the resilience of black Americans, who continued to strive for a better future despite all the obstacles.
'Black people can't scream anymore,' he said.
'They can't march anymore or they can't bare their souls anymore to what they've lived with for hundreds of years.'
Carroll said the heart of the problem was that 'white guys came over from Europe' with a 'great idea' about democracy and freedom and equality for all, but it has never come to fruition.
'That's not what happened because we went down this other road here — follow the economics and rich white guys making money,' he said.
'And they put together a system of slavery.
'And we've never left it, really. It's never gone away.
'And the really amazing thing that I've learned is black people know the truth. They know exactly what's going on. It's white people that don't know.'
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